A354164 Indices of nonprimes in A090252.

1, 5, 7, 11, 14, 15, 23, 29, 31, 32, 47, 59, 60, 63, 65, 95, 96, 119, 120, 121, 127, 128, 131, 132, 191, 193, 239, 241, 243, 244, 255, 257, 263, 264, 265, 383, 387, 388, 479, 480, 483, 484, 487, 488, 489, 511, 512, 515, 527, 529, 531, 571, 767, 775, 776, 777, 959, 960, 961, 967, 968, 969, 975, 976, 977, 979, 980, 1023, 1031, 1055, 1056, 1059, 1063

Offset: 1

Author

N. J. A. Sloane, May 31 2022

Keywords

• nonn

Links

• Russ Cox, Table of n, a(n) for n = 1..3527 (first 374 terms from N. J. A. Sloane)
• Russ Cox, Table of nonprime entries in A090252: n, A090252(n), # of prime factors, n = 1..3527.
• Hugo van der Sanden, Table of nonprime entries in the first 10^9 terms of A090252. [See file header for description]

Crossrefs

Cf. A090252, A354148, A354165, A354166.